The muted pain from a gory nightmare that lingers even after waking up the fear of the dark that beckons a stare the comfort drink sitting cold in its cup.
There's no point trying to go back to sleep. Even when awake, an ache still remains. There's no solace from the creatures that creep for when pain follows, dreams have painful stains.
The cycle of fearing the Night begins when a dark thought within finally wins.